Παραπομπή APA

John , K., & Varghese, P. (1996). Machine drawing (4th ed.). V.I.P. Publishers.

Παραπομπή Chicago Style

John , K.C, και P.I Varghese. Machine Drawing. 4th ed. Thrissur: V.I.P. Publishers, 1996.

Παραπομπή MLA

John , K.C, και P.I Varghese. Machine Drawing. 4th ed. V.I.P. Publishers, 1996.